[Dnsmasq-discuss] Two instances of Dnsmasq on one VPN network
J Silverman
g1powermac at yahoo.com
Thu Aug 9 17:21:42 BST 2007
Hello Simon,
I was just researching this a bit more and was thinking of using except-interface=<openvpn_interface>. Would the no-dhcp-interface be a better choice?
Thanks,
J Silverman
Simon Kelley <simon at thekelleys.org.uk> wrote: J Silverman wrote:
> Hi All,
>
> Here's my situation: I have two Openwrt running routers that have a
> openvpn bridged network setup between them. Both routers also have
> dnsmasq running on them, which seems to create some problems. I have
> it set that each dnsmasq has a separate IP range so I don't get
> duplicate IPs on the network. However, from what I can tell, a race
> condition seems to happen between the two dnsmasq instances. Every
> so often, a computer hooked up to the one router will get an IP
> address (and default gateway info) from the other router running
> dnsmasq. This causes issues with the VPN network since that computer
> will now route all its traffic to the remote router and internet
> connection. So basically, I want to have each instance of dnsmasq
> only service the local lan and not over the VPN bridge. Is there a
> way to do this?
add something like
no-dhcp-interface=
to /etc/dnsmasq.conf in each router. That should stop them from reacting
to DHCP broadcasts coming over VPN from the other router.
HTH
Simon.
>
> Thanks, J Silverman
>
>
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